Lunar gravity: preliminary estimates from lunar orbiter

Science. 1968 Feb 9;159(3815):625-7. doi: 10.1126/science.159.3815.625.

Abstract

Tracking data fromt the lunar orbiters have been analyzed for information regarding Moon's gravity field. These preliminary results include values of a set of harmonic coefficients throlugh degree 4 in the tesserals and degree 8 in the zonals. Implications regarding Moon's mass distribution are discltssed: one implicationt is that Moon is nearly homogeneous.